# Proposed AD FAA-2022-0470: Bombardier, Inc., Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2022-14-07
- Products: Bombardier
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: April 26, 2022, 87 FR 24476
- Comments due: June 10, 2022
- Became: [AD 2022-14-07](https://openairdocs.org/ad/2022-14-07)
- Docket: FAA-2022-0470 (https://www.regulations.gov/docket/FAA-2022-0470, where comments are filed)
- Project: MCAI-2021-01002-T
- FR document: 2022-08822
- Official PDF: https://openairdocs.org/files/sha256/31/d5/31d5f64e2134993b0556e27c4d1e43902e3a8a1b1d239810829bb4c9494e8ef0 (from https://www.govinfo.gov/content/pkg/FR-2022-04-26/pdf/2022-08822.pdf)
- Federal Register: https://www.federalregister.gov/documents/2022/04/26/2022-08822/airworthiness-directives-bombardier-inc-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/FR-ADNPRM-2022-08822-00000000000.0001
- Page: https://openairdocs.org/proposed/FAA-2022-0470

## Summary

The FAA proposes to adopt a new airworthiness directive (AD) for all Bombardier, Inc., Model BD-700-1A10 and BD-700-1A11 airplanes. This proposed AD was prompted by reports that some oxygen box assemblies had their piston ejected during the mask deployment test. This proposed AD would require a one-time inspection of each passenger oxygen box dual manifold assembly to find and replace affected parts. This proposed AD would also prohibit installing affected parts. The FAA is proposing this AD to address the unsafe condition on these products.

## Notices in this docket

- Apr 26, 2022: Notice of proposed rulemaking (NPRM). (first notice), FR document 2022-08822, comments due Jun 10, 2022 (https://www.federalregister.gov/documents/2022/04/26/2022-08822/airworthiness-directives-bombardier-inc-airplanes)

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